CVE-2026-43180net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: net: usb: kaweth: remove TX queue manipulation in kaweth_set_rx_mode kaweth_set_rx_mode(), the ndo_set_rx_mode callback, calls netif_stop_queue() and netif_wake_queue(). These are TX queue flow control functions unrelated to RX multicast configuration. The premature netif_wake_queue() can re-enable TX while tx_urb is still in-flight, leading to a double usb_submit_urb() on the same URB: kaweth_start_xmit() { netif_stop_queue(); usb_submit_urb(kaweth->tx_urb); } kaweth_set_rx_mode() { netif_stop_queue(); netif_wake_queue(); // wakes TX queue before URB is done } kaweth_start_xmit() { netif_stop_queue(); usb_submit_urb(kaweth->tx_urb); // URB submitted while active } This triggers the WARN in usb_submit_urb(): "URB submitted while active" This is a similar class of bug fixed in rtl8150 by - commit 958baf5eaee3 ("net: usb: Remove disruptive netif_wake_queue in rtl8150_set_multicast"). Also kaweth_set_rx_mode() is already functionally broken, the real set_rx_mode action is performed by kaweth_async_set_rx_mode(), which in turn is not a no-op only at ndo_open() time.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 443a830b1dc4f85c7560da59d4494b629feee215; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 586318c2730433184c6f1d21183e346ddf25e81d; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a2cd4b4db315a845a5603d08c9d03b11ddfc799d; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ef9b10a020503888eb6c8ed85a3d901a624ede4c; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 9c79b839a63980c7da7ec5db895198045e154112; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before fc393af769af845d9985e2845e49553d8f015a64; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 8367c0e90126426e60581e4c07e1ec4411a0f843; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 64868f5ecadeb359a49bc4485bfa7c497047f13a | CNA record |
linux linux_kernel linux:linux_kernel | from 2.6.12.1 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6; 2.6.12; and 6 more ranges | NVD |
References
- https://git.kernel.org/stable/c/443a830b1dc4f85c7560da59d4494b629feee215patch
- https://git.kernel.org/stable/c/586318c2730433184c6f1d21183e346ddf25e81dpatch
- https://git.kernel.org/stable/c/a2cd4b4db315a845a5603d08c9d03b11ddfc799dpatch
- https://git.kernel.org/stable/c/ef9b10a020503888eb6c8ed85a3d901a624ede4cpatch
- https://git.kernel.org/stable/c/9c79b839a63980c7da7ec5db895198045e154112patch
- https://git.kernel.org/stable/c/fc393af769af845d9985e2845e49553d8f015a64patch
- https://git.kernel.org/stable/c/8367c0e90126426e60581e4c07e1ec4411a0f843patch
- https://git.kernel.org/stable/c/64868f5ecadeb359a49bc4485bfa7c497047f13apatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.